{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["message topic", "component whole", "entity origin", "member collection"], "input": "contractions of the diaphragm are caused by stimulation of the vagus nerve either by the brain or by irritation anywhere along the length of the nerve ."}
{"message topic": [], "component whole": [], "entity origin": [], "member collection": []}